Location History:
- Hachioji, JP (1981 - 1984)
- Machida, JP (1985 - 2007)
Company Filing History:
8 out of 42,508 
1 out of 3,781 
1 out of 134 
Years Active: 1981-2007
Title: **Shigeo Yamashita: Innovator in Semiconductor Technology**
Introduction
Shigeo Yamashita, an accomplished inventor from Machida, Japan, has made significant contributions to the field of semiconductor technology. With a total of 10 patents to his name, Yamashita is known for his innovative designs that enhance the reliability and efficiency of semiconductor devices.
Latest Patents
Among his latest inventions are a semiconductor laser and an optical electronic device. The semiconductor laser element is designed to minimize contact and thermal resistance, ensuring high reliability. It is composed of a semiconductor substrate with an active layer, a ridge with a clad layer, and a contact layer, among other components. This advancement allows for more efficient semiconductor lasers on the market.
His optical electronic device comprises a plastic package casing housing several metal leads and electronic parts, which are crucial for the effective transmission and reception of light. This design significantly boosts the reliability of mounted electronic parts, showcasing Yamashita's expertise in creating solutions that cater to modern electronic requirements.
Career Highlights
Throughout his career, Shigeo Yamashita has worked with prominent companies such as Hitachi, Ltd. and Renesas Technology Corporation. These experiences have equipped him with the knowledge and skills to innovate in the semiconductor field, allowing him to drive advancements that meet industry needs.
Collaborations
Yamashita has collaborated with notable colleagues in his field, including Michiharu Nakamura and Jun-ichi Umeda. These partnerships have enriched his professional journey and enabled the development of groundbreaking technologies in semiconductor applications.
Conclusion
Shigeo Yamashita's work continues to influence the landscape of semiconductor technology. His latest patents reflect a commitment to innovation and reliability, demonstrating the vital role of inventive minds in advancing the electronics industry. As technology evolves, Yamashita's contributions will inevitably play a critical role in shaping future developments in the field.